It's kind of amazing after doing the absolute most extractive colonialism around the world, slave trading and genocides and ruination of land and societies just looted into the isles, the Brits have managed to squander everything so much in the last 70ish years that they've turned themselves into a backwards, increasingly poor nation. They've thrown the richest empire the world has ever known away to become a broke rump nation on the edge of Europe, with literal shit in the water supply.
